Question
P6.SP.TL.18012288-A1
Grace and Christian were planning to run on a circular track with a circumference of 800 m. Both of them started jogging together at the same start point and moved round the track in a clockwise direction at uniform speeds. Grace completed a full round in 80 s. Christian completed a full round in 40 s.
  1. How long would it take for Christian to overtake Grace for the first time?
  2. How far was Christian ahead of Grace after 20 s?
4 m
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Primary 6 SPEED P6.SP.TL.18012288

01 Jul 2024, 09:14 PM

Grace and Christian were planning to run on a circular track with a circumference of 800 m. Both of them started jogging together at the same start point and moved round the track in a clockwise direction at uniform speeds. Grace completed a full round in 80 s. Christian completed a full round in 40 s.
  1. How long would it take for Christian to overtake Grace for the first time?
  2. How far was Christian ahead of Grace after 20 s?
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